Microplastics in Wildlife: Emerging Welfare Concerns

Microplastic particles are now found in virtually every ecosystem on Earth, accumulating in the tissues of wildlife from plankton to polar bears and causing documented health harms.

Key Facts

Microplastics have been found in the stomachs of over 700 species of marine animals, including fish, seabirds, sea turtles, and marine mammals
Seabirds such as albatrosses and shearwaters feed plastic fragments to chicks, causing starvation, internal injury, and death
Microplastics can carry persistent organic pollutants and endocrine-disrupting chemicals that concentrate as they move up the food chain
Filter-feeding whales ingest millions of microplastic particles per day in contaminated ocean areas
Freshwater species including fish, mussels, and water birds are increasingly documented with significant microplastic burdens

Welfare Considerations

Microplastic ingestion causes measurable welfare harm including physical obstruction of digestive tracts, false satiety leading to starvation, toxic chemical exposure, and oxidative stress. Chicks fed plastic fragments by parents who mistake them for food experience slow deaths from malnutrition and gut injury. As plastic production continues to rise globally, this welfare problem is set to intensify across virtually all wildlife populations unless fundamental changes in plastic production and waste management occur.

What You Can Do

Reduce single-use plastic consumption and choose products with minimal packaging
Support extended producer responsibility legislation that makes plastic manufacturers fund cleanup
Avoid synthetic clothing that sheds microplastic fibres in washing; use fibre-catching laundry bags
Advocate for strong international plastics treaty commitments including production caps
Support beach and waterway clean-up efforts that prevent macro-plastics from fragmenting into micro-particles